不必 búbì need not
need not; does not have to; not necessarily
怎么记住“不必”: 不 not + 必 must = need not.
汉字
用法
- 不必 (búbì) means 'need not, don't have to' and negates necessity, not ability or permission - 你不必来 (nǐ búbì lái) - you don't need to come.
- It's the negative counterpart of 必须 (bìxū, must), not of 可以 (kěyǐ, may) - a common trap since English 'don't have to' can feel close to 'can't'.
- Spoken equivalent 不用 (búyòng) is more casual and far more frequent in daily conversation; 不必 reads slightly more formal or bookish.
- Fixed phrase 大可不必 (dà kě búbì) - totally unnecessary - is common in written commentary.
例句
- 你不必吃。 Nǐ búbì chī.You don't have to eat.
- 你不必早起。 Nǐ búbì zǎoqǐ.You don't have to get up early.
- 您不必感谢我。 Nín búbì gǎnxiè wǒ.You're welcome.